Modern IPM motors, suited to large constant-power speed ranges, have a multiple flux-barrier rotor structure and show a quite complex magnetic behaviour. In this paper the flux-current relationship of such motors is analysed and a simplified but effective model of the cross-saturation phenomenon is proposed and verified by experiment. In addition, new flux variables are introduced, that allow a rigorous splitting of PM and reluctance torques. It is shown that the PM contribution to torque is larger than expected from the PM no-load flux. This can lead to more accurate machine design and control strategies.
|Titolo:||Accurate magnetic modelling and performance analysis of IPM-PMASR motors|
|Data di pubblicazione:||2009|
|Digital Object Identifier (DOI):||10.1109/TIA.2008.2009493|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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